Window and roof jack.



T. B. FRY.

WINDOW AND ROOF JACK.

APPLIOATION 211.21) 00118. 1910.

980,240, Patented Jan'.3, 1911.

F LZ Z7 ZJZ JO" 7:5 if Z 1 a J j j 475 15 i7 Attorneys TOY B. FRY, OFMESQUITE, TEXAS.

WINDOW AND ROOF JACK.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application filed October 18, 1910. Serial No. 587,784.

To all whom it may concern:

Be it known that I, Tor B. FRY, a citizen of the United States, residingat Mesquite, in the county of Dallas and State of Texas, have invented anew and useful WVindow and Roof Jack, of which the following is aspecification.

It is the obj ectof the present invention to provide an improvedcombined window and roof jack and the invention aims rimarily to providea device of this class w ich may be readily disposed in a window of anyordinary width and firmly held in such position as to enable a personusing the device to sit upon the same comfortably and wash the outsidesurfaces of the window panes.

A further aim of the invention is to so construct the device that thesame may be folded into a compact form and carried about from place toplace and further to so construct and arrange the device that it may notonly be used as a window jack but may also be used as a roof jack andwhen so used will require little if any alteration in its structure.

With the above and other objects in view, the invention consists in theconstruction and arrangement of parts shown in the accompanying drawingsin which;-

Figure 1 is a top plan view of the device embodying the presentinvention. Fig. 2 is a bottom plan view thereof. Fig. 3 is a sideelevation of the device, the near side of one of the side members of thedevice being removed to show certain parts more clearly. Fig. 4 is atransverse vertical sectional view through the device; and Fig. 5 is adetail perspective view of one end of one of the attachments employed inconnection with the device when the same is being used as a roof jack.

In the drawings, the device is illustrated as embodying, in itsstructure, side members each of which consists of a pair of bars 6 whichare secured together in spaced relation and may be of any desiredthickness and length. The means for spacing the bars 6 is embodied, atthe front ends of the bars, in a spur, the shank 7 of which is disposedbetween the bars and bolts 8 are passed through this shank and throughthe spaced ends of the bars. It will be observed that this spur istapered and has its pointed end 9 presented downwardly and the utilityof this spur and also of other spurs which will be now referred to, willpresently be fully explained. The rear ends of the bars 6 com prismgeach of the side members of the device are also spaced apart by spurshanks 1nd1cated by the numeral 10, the pointed portions of these spursbeing indicated by the numeral 11. In addition to the pointed portion11, the spur shanks 10 are formed each with a depending pin or stud,indicated by the numeral 12 and to this stud upon each shank 10 there ispivoted one end of one of a pair of crossed arms 13 pivotally connectedas at 1 1 at a point between their ends or more specifically speaking attheir point of intersection. Bolts 15 are headed at their lower ends andare engaged pivotally through the ends of the arms 13 opposite theirends which connect with the pins or studs 12 and these bolts 15 projectupwardly between the bars 6 of each side member of the device andthrough a washer 16 disposed upon the upper edges of the said bars 6,and threaded upon the upper end of each bolt is a nut 17 which may betightened thereon for the purpose of drawing up on the bolt and causingits head end to firmly clamp the extremity of the related arm a ainstthe under edges of the bars 6. It will be readily understood from theforegoing that the members comprising the bars 6 may be relativelyseparated by loosening the bolt 17 and after they have been separated tothe desired degree (that is to such degree as to abut against the stilesof the window frame in which the device is to be positioned) the bolts17 are tightened, thereby securing the members in spaced parallelrelation.

It will be observed from an inspection of Figs. 1 and 3 of the drawingsthat the upper edges of the bars 6 comprising the side members of thedevice, are corrugated as indicated by the numeral 18, and disposed uponthe said bars in position transversely of the same is abar which isformed in its under side with corrugations 20 extending lengthwisethereof and engaging with the corrugations 18 in the said upper edges ofthe bars 6. It will be readily understood that owing to the formation ofthe corrugations in the upper edges of the bars 6 and the under side ofthe bar 19 and the fact that the corrugations in the bar 19 extendlengthwise thereof and substantially throughout the entire length of thebar, the corrugations of the several members will engage whether theside members of the device be closely positioned or widely separated. In

lated bars 6 and the other beneath the other one of said bars, it beingobserved that the arms of the bail extend downwardly between the saidbars 6. The bar 19 is inserted through or between the arms of the bailsupon the two side members of the device and beneath the connectingportion of the bail there is disposed a block 23 which bears upon thebar and is caused to bear more or less firmly by a clampingscrew 24-.threaded through the said connecting portion of the bail. Pivoted as at25 between each pair of bars 6 directly rearwardly of the bail 21 is awall-engaging leg 26 which is capable of being disposed at an angle asillustrated in Fig. 3 of the drawings in which position its upper endwill come into position against stop 27 extending transversely acrossthe space between the related bars 6.

It will now be readily understood that when the device is to bepositioned in a window, the side members of the device are separated tothe desired degree and are secured at adjustment, after which the legs26 are brought at their lower ends into engagement with the wall of thebuilding directly beneath the window sill upon which the side members ofthe device rest and the bar 19 is then slid up to such position as tobring its end portions against the inner faces of the stiles of thewindow frame whereupon the bolts 24: are tightened so as to clamp thebar in adjusted position. After this has been done, the device is inproper position for use and a short board or the like may be disposedupon the side members of the device and serve as a seat.

When the device is employed as a roof jack, the spurs 9 and 11 will diginto the roof, where the roof is inclined, and will firmly support theframe of the device in place. WVhen the device is put to this use,

it is desirable that steps be provided upon it so that a person usingthe device may obtain foothold at various elevations thereon and each ofthese steps is in the form of a bar indicated by the numeral 28, thebar, adjacent the end, being bent downwardly as at 9, and then inwardlylaterally as at 30, its portions 29 being formed each with an openingindicated by the numeral 31 to receive the studs 32 which are providedat intervals upon the outer faces of the outer ones of the bars 6comprising the side'members of the device. The portions 29 of the stepsare of such length or height that the ends of the portion 28 of eachstep will rest upon the upper edges of the bars 6 and the inwardlylaterally bent portions 30 will project beneath the out-er ones of thebars 6. It will be readily understood that these steps may be firmlyheld upon the side members of the device by disposing the steps upon thesaid side members and then expanding or relatively separating thesemembers until the studs 32 seat in the openings 31 and then tighteningthe bolts 17.

From the foregoing it will be readily seen that there is provided adevice of the class mentioned which may be readily applied to a windowor to a roof and which may be folded into a compact form and carriedfrom place to place.

lVhat is claimed is 1. In a window jack, relatively separable members,said members being formed with corrugations, a bar formed withcorrugations extending in the direction of its length, said bar beingdisposed upon the said members with its corrugations engaging with thecorrugations of the said members, wall-engaging legs carried by themembers, and means clamping the bar upon the members, said meanscomprising yokes straddling the bar adjacent the ends thereof and havinglateral feet engaging the under sides of the members, and clampingscrews mounted in the connecting portions of the yokes and operable toexert pressure upon the bar.

2. In a window ack, relatively separable members, each of said memberscomprising a pair of spaced bars, said bars being formed upon theirupper edges with corrugations, a bar formed with corrugations extendingin the direction of its length, said bar being disposed upon the barscomprising the said members with its corrugations engaging with thecorrugations in the said bars comprising the said members, and clampsadjustably slidable between the bars of each member and arranged toclamp the said single bar thereon.

3. In a window jack, relatively separable members, crossed arms pivotedeach at one end to one of the members at one end thereof and at itsopposite end adjustably pivotally connected with the other member, thesaid arms between their ends being pivotally connected, at bar slidablyadjustably carried upon the members at their opposite ends, andwall-engaging legs carried by the members adjacent the last mentionedbar.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

. TOY B. FRY.

Witnesses:

,H. R. WILLIAMS, Jon UTAY.

